Carpet sweeper



March 4, 1941. I STERN 2,233,754

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Patented Mar. 4, 1941 PATENT OFFICE 2,233,754 CARPET SWEEPER Joseph Stern, Newark, N. J., assigner to Sweeper Products Co., Newark, N. J., a corporation of New Jersey Application January 27, 1937, Serial No. 122,487

2 Claims.

This invention relates t'o improvements in carpet sweepers and more particularly to improvements in carpet sweepers having a dust-pan removable through the top thereof.

V5 An object of the present invention is to provide new, simple and efficient mechanism for cleaning lint and the like from the brush roll of a carpet sweeper.

Another object of the invention is to provide a brush roll cleaning device which can be readily attached to and removed from a carpet sweeper.

A still further object of the invention is to provide a brush roll cleaning mechanism which is readily detachable to and removable from an open top dust-pan which dust-pan itself is capable of being readily removed from and introduced into a carpet sweeperk casing through the open top thereof.

In carrying out the foregoing and other objects of the invention, the carpet sweeper incorporating the invention comprises a frame or casing so constructed as to have a substantially complete open top adapted to be closed by a cover hinged thereto. 'Secured to the frame-are supporting and driving wheels, and also secured to the frame are brush supporting plates somounted as to be capable of limited vertical movement. The brush supporting plates also serve as supports for an open top dust-pan which can be introduced into the frame and removed therefrom through the open top of the frame. By this arrangement, the dust-pan is mounted for vertical movement simultaneously with the brush roll.

Since the bristles of a brush roll during use are prone to collect lint, threads, and other matter which cannot be dislodged therefrom during the normal operation of the brush, the present invention provides means for removing or combing such lint, threads,v etc. from the brush rollduring operation. A comb for this purpose is preferably made of metal .or somel other unyielding material, and such comb necessarily will impose undue wear on the bristles of the brush if permitted to contact therewith at all times. Accordingly, the comb is mounted for ready attachment to and detachment from a part of the carpet sweeper. To facilitate such attachment and detachment, means are provided for receiving and holding the comb between parts of the dustpan so that the comb can be removed from the casing along with the pan and can be removed from the pan either while the pan is in the casing or when the pan has been separated from the casing.

Other features, objects and advantages of the (cl. 15-48) v r invention will become apparent by reference to the following detailed description of the accompanying drawings wherein:

Fig. 1 is a plan view of la device embodying the ,Y invention with the cover in open position; '5 Fig. 2 is a section taken substantially on the line 2-2 of Fig. 1;

Fig. 3 is a section taken substantially on the line 3-3 of Fig. 1;

Fig. 4 is an enlarged perspective view of a dustflo pan having comb receiving sockets in the opposite ends thereof;

Fig. 5 is a fragmentary side elevation of a comb utilized in the invention;

Fig. 6 is an end View thereof; and

Fig. 7 is a fragmentary showing of the construction of one end of each carrier plate illustrating the manner in which the dust-pan is supported thereby for movement therewith.

Referring now to the drawings, I0 indicates20 generally a casing or frame made up of side plates I and end plates I 2 secured thereto. The side plates may be of any suitable material such as wood, metal, etc., but the end plates preferably, are made of metal so shaped and secured to the' 25 side plates ||A as to provide rounded corners. Ihe yeasing orframe so made up of these plates is entirely open at the top and a 'cover I4 hingedly secured to one side thereof serves to close the,Y opening in the top of the casing.

Carrier plates I5 are secured Within the casing adjacent each end plate I2. These plates are secured to the casing by studs I6 which extend through slots |'I in the respective end plates I2, and which have brush roll bearing portions I8 35 adjacent the inner faces of the carrier plates. The usual bail I9 is secured to the studs I6 for actuating the sweeper and for controlling vertical movement of the carrier rplates within the limitsdefined by the length of the slots I'I. Each( 40 carrier plate I5 is held normally in uppermost position by a spring 20 secured to an'end'plate VI2 intermediate the ends of the spring as shown at 2|, and secured tothe carrier plateat eachend of the spring as Aindicated at 22. Fingers ,2fl4a pressed from the carrier plate'serve to hold y,each carrier plate in proper spaced relation from its associated end plate.

The supporting and driving wheels 30 are independently rotatably mounted on plates 3| 50 which in turn are p-ivotally secured to the end plates I2. Spacer members 32 serve to position the respective plates 3| inwardly of the carrier plates I5. The free ends of the plates 3| are provided with legs 34 which in cooperation with 55 lingers 35 punched from the end plates serve to limit pivotal movement of the plates 3| about their axes. By this arrangement it follows that the respective supporting and driving wheels 3|] 7 made preferably, but not necessarily, of some suitable metal, such back being provided with a 5 are mounted for rotation and also for limited arcuate movement about the axes of the pivotal connections between plates 3| and end plates I2. The carrier plates I5 are cut away to accommodate the pivotal mounting of the wheel plates 3| and also to accommodate the stop fingers 35 without interfering with vertical movement of the carrier plates.

I8. The .brush roll is so constructed that `the pins 4| can be disengaged from the sockets I8 to permit removal of the brush through the top of the frame or casing. The brush roll 46 is also provided with integral pulley members 42 positioned to be engaged by the supporting and driving wheels v.'i. Inasmuch as the brush is mounted for limited vertical movement along with the carrier plates I5, the provision of the arrangement whereby the supporting wheels are capable of limited arcuate movement makes possible a good frictional contact between the driving wheels and the pulleys 42 in all positions of the brush roll.

The ends of the carrier plates I5` are'bent around, as indicated at 45, and upstanding fingers 46 extend upwardly lfrom the normal top edge of'the carrier plate. 'Ihese iingers are bowed intermediate their length as indicated for a purpose to be explained later. In addition to the lingers 46, the extensions 45 of the carrier plates are also provided with iingers 41 adjacentto but extending at an angle from the iingers 46. The purpose of these fingers will also be explained later.

i The dust-pan indicated generally at 50 is constructed preferably of metal into the shape shown clearly in Fig. 4, wherein two dust receiving compartments 5| are provided, such compartments being adapted to be located at the opposite sides ofthe bristle roll 40. This arrangement is shown outer surfaces of the lingers 46 with the upper ends of the iingers introduced into the space between the parts 52 and 54. The bowed portions of fingers 46 serve to provide a. good frictional contact between the fingers and the dust-pan 55 to'hold the dust-pan suciently secure to the extensions of the carrier plate as to insure movement of the dust-pan simultaneously with the carrier plates and also with the brush roll. The iingers 41 serve to determine positioning of the dust-pan in proper assembly since these iingers extend in close relation to the end plates of the dust-pan. A handle 55 extends between the end plates of the dust-pan to facilitate handling thereof.

Two socket members 56 are secured in any suitable fashion to the opposite end plates of the dust-pan, such sockets being disposed at an angle Vto the vertical and being provided with open me of the bristles.

tops, closed bottoms, and open sides, such open sides being directed inwardly of the pan. 'I'hese sockets are provided to receive a comb indicated generally at 60. The comb comprises a back 61| longitudinal bead 62. Extending from one edge of the back 6| are a plurality of teeth 64 formed integral with the back. EI'hebe'ad 62 is of such dimensions as to vcause the kback '6| to `iit snugly in the sockets 56 with a suilicient amount of friction as to insure the comb being retained in the sockets against adventitious removal. However, the t is not tight enough to interfere with ready removal of the comb from the sockets.

In use of the present invention, the comb 66 can be engaged in the sockets 56 at any desired time, such use of the comb being ordinarily made onlywhen the bristles of the roll 46 have collected an undesirable amount of lint, threads and the like. When so in place, the lcombser-ves to Vre- .move such lint,.etc., from the brush, and when this purpose has been achieved, the comb canbe readily removed from the assembly since con,- tinued use thereof might possibly shorten the Since the comb is removably secured .to the.

dust-pan, and since the dust-pan is'readily removable from the casing, it follows that the comb can-be removed either from .the dust-pan while thepan .is .in the casing, oriromthe dust-pan while the ,pan is detached from the casing. Thus, it Vfol-lows that the use of thecomb is facilitated.

From the foregoing it will be seen that the invention provides novel, eiiicient and .simple means 'for quickly cleaning the bristles of a carpet sweeper bristle roll, which cleaning .means can be used intermittently as desired,'th`ereby causing no harmful effects on the bristles of the bristle roll.

It is to be understood that Vthe invention is 40 capable of modification; in view of which any limitations imposed thereupon are to be suchy only as are .s'et forthin the following claims.

,What is claimed is: 1'. .A .sweeper of the type described comprising a casing having an open top, adriven bristle .roll

mounted therein, an open Atop dust-pan removi lably mounted in said casing adjacent .to said bristle roll, socket means vsecured to the inner sidewallsoi .said pan, vand Ala comb removably engaged in said sockets, said comb having a back provided with a longitudinalbead yfor providing frictional contact `of the back vWit-h the sockets `and having teeth adapted to be located in .the 

